Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cebe30f3e61e065…

MALICIOUS

PDF

43.7 KB Created: 2020-07-29 22:11:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0483ae29ede0ed95021b373f3cea4ece SHA-1: 228d1b57160fc50f433e52017d027b1f46c144e2 SHA-256: 0cebe30f3e61e06567a379c046ebac232dd76ad7d539ee67c898d1bf1146fef9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains multiple embedded links that redirect to malicious infrastructure, specifically identified as a redirector at ttraff.com. This suggests a phishing or scam attempt disguised as a free download, likely to lead users to a malicious site or to harvest credentials. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=phonics+writing+worksheets+pdf In PDF document text
    • http://files.guesthouseouassaggou.com/uploads/1/3/0/7/130775759/7b61b8.pdfIn PDF document text
    • http://files.poseidonbrewingco.com/uploads/1/3/1/3/131380687/434ed9.pdfIn PDF document text
    • http://files.rjjeffreys.com/uploads/1/3/0/7/130739348/xinevojiwit.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3562/3578/files/moguxosulibenesiren.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7223/3376/files/80647031686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0498/4483/files/xurejenavijujakori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/69285887103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0992/3480/files/baxuxaxutuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6716/3302/files/zatalulamozipikomusabam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/19793266642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9936/3222/files/riruvaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wanojexabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5544/7202/files/64435116380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6796/4580/files/76317745444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7732/8278/files/17673977811.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4B 5120 bytes
SHA-256: 354751774e002202512913e314414ba8f4c7ef964f970a44648d5ad266680900
font_01_sfnt_off00007fbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBB 9968 bytes
SHA-256: 2bf35538b77341aad7c9f366fe6c25f44b25e3b671aa0297a68c4b3ec4a56a32

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